Introducing a new triazoloquinoxaline-based fluorene copolymer for organic photovoltaics: Synthesis, characterization, and photovoltaic properties

Derya Baran; Felix M. Pasker; Stephan Le Blanc; Gregor Schnakenburg; Tayebeh Ameri; Sigurd Höger; Christoph J. Brabec

doi:10.1002/pola.26465

Introducing a new triazoloquinoxaline-based fluorene copolymer for organic photovoltaics: Synthesis, characterization, and photovoltaic properties

Derya Baran^*, Felix M. Pasker, Stephan Le Blanc, Gregor Schnakenburg, Tayebeh Ameri, Sigurd Höger, Christoph J. Brabec

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

A new donor-acceptor copolymer consisting of triazoloquinoxaline and 9,9-dialkylfluorene units on the main chain has been synthesized, characterized and evaluated as donor material in bulk heterojunction solar cells using PC ₆₁BM as an acceptor. The resulting polymer PTQF showed good thermal stability and solubility in common organic solvents. Cyclic Voltammetry measurements showed that the PTQF has HOMO-LUMO energy levels of -5.13 and -3.62 eV, respectively. DFT calculations revealed that the HOMO is delocalized all over the thiophene and fluorene units and the LUMO is localized mainly on the triazole and pyrazine units. PTQF absorbs broadly in the visible region and exhibits a bandgap of 1.4 eV. Photovoltaic devices exhibited 1.7% efficiency for 1:2 PTQF:PC₆₁BM blend ratio using Ca/Ag electrodes.

Original language	English (US)
Pages (from-to)	987-992
Number of pages	6
Journal	Journal of Polymer Science, Part A: Polymer Chemistry
Volume	51
Issue number	4
DOIs	https://doi.org/10.1002/pola.26465
State	Published - Feb 15 2013
Externally published	Yes

Keywords

Suzuki coupling
benzotriazole
conducting polymers
conjugated polymers
electrochemistry
fluorene copolymer
organic photovoltaics
triazoloquinoxaline

ASJC Scopus subject areas

Polymers and Plastics
Organic Chemistry
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/pola.26465

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title = "Introducing a new triazoloquinoxaline-based fluorene copolymer for organic photovoltaics: Synthesis, characterization, and photovoltaic properties",

abstract = "A new donor-acceptor copolymer consisting of triazoloquinoxaline and 9,9-dialkylfluorene units on the main chain has been synthesized, characterized and evaluated as donor material in bulk heterojunction solar cells using PC 61BM as an acceptor. The resulting polymer PTQF showed good thermal stability and solubility in common organic solvents. Cyclic Voltammetry measurements showed that the PTQF has HOMO-LUMO energy levels of -5.13 and -3.62 eV, respectively. DFT calculations revealed that the HOMO is delocalized all over the thiophene and fluorene units and the LUMO is localized mainly on the triazole and pyrazine units. PTQF absorbs broadly in the visible region and exhibits a bandgap of 1.4 eV. Photovoltaic devices exhibited 1.7% efficiency for 1:2 PTQF:PC61BM blend ratio using Ca/Ag electrodes.",

keywords = "Suzuki coupling, benzotriazole, conducting polymers, conjugated polymers, electrochemistry, fluorene copolymer, organic photovoltaics, triazoloquinoxaline",

author = "Derya Baran and Pasker, {Felix M.} and Blanc, {Stephan Le} and Gregor Schnakenburg and Tayebeh Ameri and Sigurd H{\"o}ger and Brabec, {Christoph J.}",

year = "2013",

month = feb,

day = "15",

doi = "10.1002/pola.26465",

language = "English (US)",

volume = "51",

pages = "987--992",

journal = "Journal of Polymer Science, Part A: Polymer Chemistry",

issn = "0887-624X",

publisher = "Wiley",

number = "4",

}

Introducing a new triazoloquinoxaline-based fluorene copolymer for organic photovoltaics: Synthesis, characterization, and photovoltaic properties. / Baran, Derya; Pasker, Felix M.; Blanc, Stephan Le et al.
In: Journal of Polymer Science, Part A: Polymer Chemistry, Vol. 51, No. 4, 15.02.2013, p. 987-992.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Introducing a new triazoloquinoxaline-based fluorene copolymer for organic photovoltaics

T2 - Synthesis, characterization, and photovoltaic properties

AU - Baran, Derya

AU - Pasker, Felix M.

AU - Blanc, Stephan Le

AU - Schnakenburg, Gregor

AU - Ameri, Tayebeh

AU - Höger, Sigurd

AU - Brabec, Christoph J.

PY - 2013/2/15

Y1 - 2013/2/15

N2 - A new donor-acceptor copolymer consisting of triazoloquinoxaline and 9,9-dialkylfluorene units on the main chain has been synthesized, characterized and evaluated as donor material in bulk heterojunction solar cells using PC 61BM as an acceptor. The resulting polymer PTQF showed good thermal stability and solubility in common organic solvents. Cyclic Voltammetry measurements showed that the PTQF has HOMO-LUMO energy levels of -5.13 and -3.62 eV, respectively. DFT calculations revealed that the HOMO is delocalized all over the thiophene and fluorene units and the LUMO is localized mainly on the triazole and pyrazine units. PTQF absorbs broadly in the visible region and exhibits a bandgap of 1.4 eV. Photovoltaic devices exhibited 1.7% efficiency for 1:2 PTQF:PC61BM blend ratio using Ca/Ag electrodes.

AB - A new donor-acceptor copolymer consisting of triazoloquinoxaline and 9,9-dialkylfluorene units on the main chain has been synthesized, characterized and evaluated as donor material in bulk heterojunction solar cells using PC 61BM as an acceptor. The resulting polymer PTQF showed good thermal stability and solubility in common organic solvents. Cyclic Voltammetry measurements showed that the PTQF has HOMO-LUMO energy levels of -5.13 and -3.62 eV, respectively. DFT calculations revealed that the HOMO is delocalized all over the thiophene and fluorene units and the LUMO is localized mainly on the triazole and pyrazine units. PTQF absorbs broadly in the visible region and exhibits a bandgap of 1.4 eV. Photovoltaic devices exhibited 1.7% efficiency for 1:2 PTQF:PC61BM blend ratio using Ca/Ag electrodes.

KW - Suzuki coupling

KW - benzotriazole

KW - conducting polymers

KW - conjugated polymers

KW - electrochemistry

KW - fluorene copolymer

KW - organic photovoltaics

KW - triazoloquinoxaline

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U2 - 10.1002/pola.26465

DO - 10.1002/pola.26465

M3 - Article

AN - SCOPUS:84872016660

SN - 0887-624X

VL - 51

SP - 987

EP - 992

JO - Journal of Polymer Science, Part A: Polymer Chemistry

JF - Journal of Polymer Science, Part A: Polymer Chemistry

IS - 4

ER -

Introducing a new triazoloquinoxaline-based fluorene copolymer for organic photovoltaics: Synthesis, characterization, and photovoltaic properties

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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